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chiasma (n.)
[chiasma 词源字典]
"a crossing," 1832, medical Latin, from Greek
khiasma
"two things placed crosswise," which is related to
khiasmos
(see
chiasmus
). In cytology from 1911.
[chiasma etymology, chiasma origin, 英语词源]
[chiasma 词源字典]